The flag of the Estonian Soviet Socialist Republic flag shows a yellow hammer and sickle and outlined star on a red field above a band of water waves near the bottom,[1] and was adopted by the Estonian SSR on February 6, 1953.

Prior to this, the flag was red with a gold hammer and sickle in the top-left corner. Above the hammer and sickle were the gold Latin characters ENSV (Eesti Nõukogude Sotsialistlik Vabariik) in a sans-serif font.